From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3031306-1521204954-2-3406085951989006731 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521204954; b=svIGYsYZmGhKDF8NHZ0prvvjLW7XhBqjyWTZnq3H7Woojsy AvdS3lgKZ8zgXvkhQ8oefSqKVYHouPGPyOsnll7hNCjYcJV96AzCkpSBq2Xsm+RQ En01j9oaEJflGsqygWeE7mseI/dpZfVDNP97gQRiz9UUoXkSzxvj51eqyHvWE8jy XALWAnI/dNoPeMVfuUlBP1HQyURacPZApkzMN302JzQU6JZp/qlsWrhTA9c1Pt81 vuDo9L0pNLNJZvV5/WIdBKufOxv+a/5d//9149QprVNhzB133sW5a39LPjMQVBiB DgZ3foXncCZfQMcDBFY7xzwnAlrXy/mCZCBsAnQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to:sender :list-id; s=arctest; t=1521204954; bh=JH00NQO0aZ7vjQjVwb72cNpHK5 IiE0RxbOnRS/+ZQ5c=; b=hxw5WQ6YVyR4XySW3qCl+hdytMTczlHPgRkiVzZAIu GWn5lIWLYwioa8r919Rd5cocnLFkZ72wdnuAidnHy26JvbN2QUXXpMFRcqQ4iEMi +MeuKALIHgBkm5rXKc6P0HruURBkLhDSccVrKMVSEcV0cqkjy//PhD15Q/DlW4De nczgCLM+I4UxPFvPpOjTxaGZDUNmLhnMGF1DiOEqA5lHdXaHKWtVrQ8qWo+aYOwp 6MKzbQ1pEuvpZh42EgODNZYNyLYL4AhnyWZBum9Qi0WPH45XnmiEmduElGIp/giQ 8YdkHk4mfzft5SWC29ZJmxeh50M1Xw75p/rxW71yWVaA== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linux.intel.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linux.intel.com header.result=pass header_org.domain=intel.com header_org.result=pass header_is_org_domain=no Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linux.intel.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linux.intel.com header.result=pass header_org.domain=intel.com header_org.result=pass header_is_org_domain=no Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752130AbeCPMzh (ORCPT ); Fri, 16 Mar 2018 08:55:37 -0400 Received: from mga02.intel.com ([134.134.136.20]:59909 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751889AbeCPMze (ORCPT ); Fri, 16 Mar 2018 08:55:34 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,315,1517904000"; d="scan'208";a="24610670" Date: Fri, 16 Mar 2018 14:55:25 +0200 From: Jarkko Sakkinen To: Jason Gunthorpe Cc: linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, Sahil Rihan , Alexei Starovoitov , stable@vger.kernel.org, Peter Huewe , Arnd Bergmann , Greg Kroah-Hartman , open list Subject: Re: [PATCH] tpm: allow TCPA log area to be empty Message-ID: <20180316125525.GB5035@linux.intel.com> References: <20180310161637.7723-1-jarkko.sakkinen@linux.intel.com> <20180312150231.GA24717@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180312150231.GA24717@ziepe.ca> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.9.4 (2018-02-28) Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Mon, Mar 12, 2018 at 09:02:32AM -0600, Jason Gunthorpe wrote: > On Sat, Mar 10, 2018 at 06:16:37PM +0200, Jarkko Sakkinen wrote: > > TCPA log are can be empty when the TPM is disabled. This commit changes the > > behavior of tpm_read_log_acpi() to return successfully in this case. > > The commit should explain why we'd want this.. > > eg Why does it matter to create the extra sysfs files to report an empty > log? > > Jason The initialization of the driver will fail otherwise. Not sure if I understand your question. /Jarkko